A novel metal-only reflectarray antenna is proposed in this letter. By using a unique unified slot structure, the dielectric substrate commonly applied in conventional reflectarray antennas can be avoided. Various slot elements are investigated, and a prototype reflectarray antenna working at 12.5 GHz is studied for experimental verification. The simulation and measurement results show that good radiation characteristics are achieved by the proposed design. The measured gain is 32.5 dB with 1-dB gain bandwidth of 8.3%, which is comparable to reflectarrays consisting of conventional patch elements. The metal-only structure provides an innovative reflectarray configuration to better withstand the extreme outer space environment and effectively reduce the antenna cost.
No takes yet. Share an insight, caveat, or question.
An et al. (2014) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: